High pressure resistant fire extinguisher structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG XINLONG FIRE FLIGHTING TECH CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
When existing high-pressure fire extinguishers are placed on the ground, the valve body is easily deformed by collisions with external objects, affecting the pressing effect and causing untimely fire extinguishing operations.
A fire extinguisher structure including a mounting base, a housing, and a safety mechanism was designed. The locking structure is formed by the cooperation of the contact strip and the connecting rod. Combined with the limiting mechanism and the limiting groove, the valve is kept locked when not in use to prevent collision deformation. At the same time, the rubber sleeve and trapezoidal locking hole design prevent the nozzle from shaking and enhance the overall stability.
It effectively prevents valves from deforming due to collisions when not in operation, ensuring the safety and stability of fire extinguishers, improving emergency response speed, and avoiding misoperation and external force triggering.
Smart Images

Figure CN224540850U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire extinguisher technology, specifically a high-pressure resistant fire extinguisher structure. Background Technology
[0002] High-pressure fire extinguishers use powder or gaseous extinguishing agents to expel oxygen from the fire scene, thereby extinguishing the fire by reducing the oxygen concentration and suffocating the flames. For example, the fire extinguisher described in announcement number CN209548571U has a quick-release connection device for the nozzle, which is fixed to the bottle body with an adhesive layer. This device is used to keep the nozzle close to the bottle body and can be quickly separated from the bottle body. The above-mentioned device solves the problem that fire extinguisher nozzles occupy space and are prone to protruding outwards, causing tripping and slipping and damaging the fire extinguisher. However, it lacks protection for fire extinguishers placed on the ground. When external objects tip over and collide with the fire extinguisher, its valve body may deform, affecting the pressure of the valve body and preventing timely fire extinguishing. Utility Model Content
[0003] The purpose of this invention is to provide a high-pressure resistant fire extinguisher structure to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A high-pressure resistant fire extinguisher structure includes a placement base, a tank is placed inside the placement base, a valve is embedded and connected to the upper surface of the tank, and a flexible nozzle is fixedly connected to the output end of the valve. The outer surface of the tank is nested with a shell, and the upper end of the shell is rotatably connected to a safety mechanism. The safety mechanism includes a mounting bracket and a connecting rod. The mounting bracket is fixedly connected to the upper surface of the shell, and a contact strip is hinged to the outer surface of the mounting bracket. The connecting rod is fixedly connected to the other end of the contact strip.
[0005] Furthermore, the interior of the housing is evenly distributed with several integrally injection-molded limiting strips, and the front surface of the mounting bracket is fixedly connected with a handle.
[0006] Furthermore, the upper surface of the housing is provided with a limiting mechanism, which includes a limiting rail and a slider. The limiting rail is fixedly connected to the upper surface of the housing, and the slider is slidably connected to the outer surface of the limiting rail. A limiting groove is opened on the front surface of the slider. Before the connecting rod flips over, it contacts the limiting groove and limits the connecting rod through the limiting groove. One end of the slider is an inclined surface. Under the pressure of the placement seat, the slider limits the connecting rod through the limiting groove.
[0007] Furthermore, a fixing foot is fixedly connected to the outer surface of the placement base near the lower surface, and a locking hole is opened on the inner bottom surface of the placement base near the center.
[0008] Furthermore, the housing and the locking hole are connected by an interlocking mechanism, and the cross-section of the locking hole is trapezoidal, which enables the housing and the locking hole to quickly connect.
[0009] Furthermore, a rubber sleeve is nested on the outer surface of the shell, the outer surface of the rubber sleeve has a groove, the outer surface of the can has a groove, and the limiting strip matches the groove.
[0010] Furthermore, the slot and the nozzle are connected, and the slot can limit the nozzle to prevent it from shaking.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The safety mechanism, through the cooperation of the contact strip and the connecting rod, can prevent the valve from moving when the fire extinguisher is not in use. Its working principle is to use the shape of the contact strip to lock and limit the valve at the pressing position, forming a movable locking structure. When the fire extinguisher is in use, the contact strip and the valve are separated, and the safety mechanism, together with the limiting mechanism, protects the valve position, preventing the valve from being deformed due to direct collision with the outside world during transportation or when it is not in use. 2. When the fire extinguisher is placed on the placement seat, the placement seat will exert a vertical pressure on the inclined surface of the slider. This pressure is converted into a horizontal thrust through the inclined surface, causing the slider to slide along the limit rail, thereby driving the limit groove to lock the connecting rod, further fixing the safety mechanism, ensuring that the safety mechanism remains locked when the fire extinguisher is not in use, and enhancing the safety of the fire extinguisher. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the placement base structure of this utility model; Figure 3 This is a schematic diagram of the insurance institution structure of this utility model; Figure 4 This is a schematic diagram of the tank structure of this utility model.
[0013] In the diagram: 1. Placement base; 101. Fixing foot; 102. Locking hole; 2. Housing; 201. Rubber sleeve; 202. Locking groove; 203. Limiting strip; 3. Tank body; 301. Groove; 302. Spray pipe; 303. Valve; 4. Safety mechanism; 401. Mounting bracket; 402. Contact strip; 403. Handle; 404. Connecting rod; 5. Limiting mechanism; 501. Limiting rail; 502. Slider; 503. Limiting groove. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Please see Figure 1-4 In this embodiment of the utility model, a high-pressure resistant fire extinguisher structure includes a placement base 1, a tank 3 is placed inside the placement base 1, a valve 303 is embedded and connected to the upper surface of the tank 3, and a flexible nozzle 302 is fixedly connected to the output end of the valve 303. The outer surface of the tank body 3 is nested with a shell 2. The upper end of the shell 2 is rotatably connected with a safety mechanism 4. The safety mechanism 4 includes a mounting bracket 401 and a connecting rod 404. The mounting bracket 401 is fixedly connected to the upper surface of the shell 2. A contact strip 402 is hinged to the outer surface of the mounting bracket 401. The connecting rod 404 is fixedly connected to the other end of the contact strip 402.
[0016] Specifically, the device is shipped in sealed plastic packaging. The shell 2 is nested on the outer surface of the tank 3 to protect and reinforce the tank 3, improving its pressure resistance. The safety mechanism 4, through the cooperation of the contact strip 402 and the connecting rod 404, can prevent the valve 303 from moving when the fire extinguisher is not in use. Its working principle is to use the shape of the contact strip 402 to lock and limit the valve 303 at the pressing position, forming a movable locking structure. When the fire extinguisher is in use, the contact strip 402 and the valve 303 separate, and the safety mechanism 4, together with the limiting mechanism 5, protects the position of the valve 303, preventing the valve 303 from being deformed due to direct collision with the outside world during transportation. This structure can prevent the valve 303 from being triggered by external force or misoperation, thereby effectively preventing the valve 303 from being opened accidentally and ensuring the safety of the fire extinguisher in the non-working state.
[0017] Example 1 like Figure 1-4 As shown, several integrally injection-molded limiting strips 203 are evenly distributed inside the housing 2, and a handle 403 is fixedly connected to the front surface of the mounting bracket 401.
[0018] In this embodiment, the limiting strip 203 is connected to the shell 2 by an integral injection molding process. This structural design utilizes the high strength and toughness of the plastic material, which can closely fit the outer surface of the tank 3 and reinforce the tank 3. The handle 403 is designed based on ergonomic principles. Its fixed connection with the mounting bracket 401 not only provides sufficient mechanical strength, but also enables the operator to quickly grab the handle 403 in an emergency and lift the fire extinguisher from the placement seat 1, thereby improving the emergency response speed.
[0019] like Figure 2-4 As shown, a limiting mechanism 5 is provided on the upper surface of the housing 2. The limiting mechanism 5 includes a limiting rail 501 and a slider 502. The limiting rail 501 is fixedly connected to the upper surface of the housing 2, and the slider 502 is slidably connected to the outer surface of the limiting rail 501. A limiting groove 503 is opened on the front surface of the slider 502. Before the connecting rod 404 is flipped, it contacts the limiting groove 503 and limits the connecting rod 404 through the limiting groove 503. One end of the slider 502 is an inclined surface. Under the pressure of the placement seat 1, the slider 502 limits the connecting rod 404 through the limiting groove 503.
[0020] In this embodiment, the working principle of the limiting mechanism 5 is based on the sliding of the slider 502 on the limiting rail 501 and the cooperation between the limiting groove 503 and the connecting rod 404. When the fire extinguisher is placed on the placement seat 1, the placement seat 1 will generate a vertical pressure on the inclined surface of the slider 502. This pressure is converted into a horizontal thrust through the inclined surface, causing the slider 502 to slide along the limiting rail 501, thereby driving the limiting groove 503 to clamp the connecting rod 404, further fixing the safety mechanism 4, and ensuring that the safety mechanism 4 remains locked when the fire extinguisher is not in use, thus enhancing the safety of the fire extinguisher. Example 2 Based on Embodiment 1, in order to overcome the problem that it is inconvenient to limit the position of the shell 2 placed on the ground in Embodiment 1.
[0021] like Figure 1-4 As shown, a fixed foot 101 is fixedly connected to the outer surface of the placement base 1 near the lower surface. A locking hole 102 is opened on the inner bottom surface of the placement base 1 near the center. The housing 2 and the locking hole 102 are inserted into each other, and the cross section of the locking hole 102 is trapezoidal, which enables the housing 2 and the locking hole 102 to quickly connect.
[0022] In this embodiment, the fixing foot 101 can be installed on the ground with the threaded assembly to prevent the fire extinguisher from tipping over due to uneven ground or external force when placed. The trapezoidal cross-section design of the locking hole 102 utilizes the characteristics of a trapezoid being narrow at the bottom and wide at the top. When the housing 2 is placed, the inclined surface of the trapezoid guides the housing 2 to smoothly enter the locking hole 102, achieving rapid docking.
[0023] like Figure 1-4As shown, a rubber sleeve 201 is nested on the outer surface of the shell 2. A groove 202 is formed on the outer surface of the rubber sleeve 201. A groove 301 is formed on the outer surface of the tank 3. The limiting strip 203 matches the groove 301. The groove 202 is connected to the nozzle 302. The groove 202 can limit the nozzle 302 to prevent it from shaking.
[0024] In this embodiment, when the nozzle 302 is inserted into the slot 202, the elasticity of the rubber sleeve 201 generates a clamping force, thereby limiting the nozzle 302 and preventing it from shaking due to external force or its own weight when not in use, thus keeping the fire extinguisher clean and intact.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-pressure resistant fire extinguisher structure, comprising a placement base (1), wherein a tank (3) is placed inside the placement base (1), and a valve (303) is embedded and connected to the upper surface of the tank (3), and a flexible nozzle (302) is fixedly connected to the output end of the valve (303). Its features are, The outer surface of the tank (3) is nested with a shell (2), and the upper end of the shell (2) is rotatably connected with a safety mechanism (4), the safety mechanism (4) comprising: Mounting bracket (401) is fixedly connected to the upper surface of housing (2), and a contact strip (402) is hinged to the outer surface of mounting bracket (401). The connecting rod (404) is fixedly connected to the other end of the contact bar (402).
2. The high-pressure resistant fire extinguisher structure according to claim 1, characterized in that, The interior of the housing (2) is evenly distributed with several integrally injection molded limiting strips (203), and the front surface of the mounting bracket (401) is fixedly connected with a handle (403).
3. The high-pressure resistant fire extinguisher structure according to claim 1 or 2, characterized in that, The upper surface of the housing (2) is provided with a limiting mechanism (5), the limiting mechanism (5) comprising: The limiting rail (501) is fixedly connected to the upper surface of the housing (2); The slider (502) is slidably connected to the outer surface of the limiting rail (501), and the front surface of the slider (502) is provided with a limiting groove (503).
4. The high-pressure resistant fire extinguisher structure according to claim 1, characterized in that, The outer surface of the placement base (1) is fixedly connected to a fixing foot (101) near the lower surface, and a locking hole (102) is opened on the inner bottom surface of the placement base (1) near the center.
5. The high-pressure resistant fire extinguisher structure according to claim 4, characterized in that, The housing (2) and the card hole (102) are connected, and the cross section of the card hole (102) is trapezoidal, which enables the housing (2) and the card hole (102) to quickly connect.
6. The high-pressure resistant fire extinguisher structure according to claim 2, characterized in that, The outer surface of the shell (2) is nested with a rubber sleeve (201), the outer surface of the rubber sleeve (201) is provided with a slot (202), the outer surface of the tank (3) is provided with a groove (301), and the limiting strip (203) matches the groove (301).
7. The high-pressure resistant fire extinguisher structure according to claim 6, characterized in that, The slot (202) and the nozzle (302) are connected to each other. The slot (202) can limit the nozzle (302) to prevent it from shaking.